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88016521 is a prime number
BaseRepresentation
bin1010011111100…
…00011010001001
320010121200222011
411033300122021
5140013012041
612422255521
72116061635
oct517603211
9203550864
1088016521
114575712a
12255875a1
13153091a8
14b991dc5
157ad8e81
hex53f0689

88016521 has 2 divisors, whose sum is σ = 88016522. Its totient is φ = 88016520.

The previous prime is 88016503. The next prime is 88016527. The reversal of 88016521 is 12561088.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 855625 = 9336^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 88016521 - 211 = 88014473 is a prime.

It is not a weakly prime, because it can be changed into another prime (88016527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44008260 + 44008261.

It is an arithmetic number, because the mean of its divisors is an integer number (44008261).

Almost surely, 288016521 is an apocalyptic number.

It is an amenable number.

88016521 is a deficient number, since it is larger than the sum of its proper divisors (1).

88016521 is an equidigital number, since it uses as much as digits as its factorization.

88016521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 88016521 is about 9381.7120505801. The cubic root of 88016521 is about 444.8238515048.

The spelling of 88016521 in words is "eighty-eight million, sixteen thousand, five hundred twenty-one".